The DrugBank analysis identified 11 genes (CRAT, EBP, ACADSB, CMPK1, SLC22A5, HMGCR, HSD17B7, NSDHL, DHCR7,FDPS, and CYP51A1) that have already been targeted by approved drugs in the treatment of cancer or relative diseases. This evidence concerns the gene DHCR7 and cancer.